Improvement in revolving-disk harrows



J. F. POND.

Improvement in Revolving-Disk Harrows. 910,114,707. Patented May 9,1871.

waTNEss-Es. ANVENTOB.

WM 54AM@ inl diritti izrir .JOSEPH r. reno, or CLEVELAND. OHIO.y

Letters Patent No. 114,707,1dated May 9, 1871.

IMPRovEm-:NT IN nEvoLvlNG-olsx HARRow's.V

The Schedule referred to In these Lettera Patent and making part of thevllme.

Te all whom it may conce-rn:

Beit known that I, Josera F. POND, of the cit-y of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Im provemcnts in Revolving-Disk. Harrows and Disk Onltivatois; and thc following is a description of the same, reference being liad to the accompanying drawing making a part of this specification, in which- Figure 1 represents a perspective view of barrow with thills attached.

Figure 2 also represents a perspective view of harrow with pole attached.

Figure 3 is a sectional view of disk complete.

Figure 4 is aplan view of hub, axle, and cone-box.

VFigure 5 is a top or plan view of ah adjustable disksupporter.

First, in the application and use of vthills orpole to 4- revolving-disk narrows.

Second, of a revolving-disk barrow or cultivator composed ot' metal and wood, or either, to which'thills disk-bars, so that disk-supporter may be changed from one position to another to throwthe earth out or in, and also allow the disk-bars to be shortened or taken up toward the center of the implement.

It further consists in constructing the disk-supporter with a coupling-joint, so that the disk may be iirmly secured at any desired position or angle.

1t also consists in constructing the hub of the disk in such a manner that dust or grit cannot enter the hub and prevent the easy action of the disk.

It also consists in constructing the hub in sucha manuel' that bolts and nuts can be dispensed with at the small or outer end of the hub to keep the disk on the cone-shaped axle or arm, so that a friction-washer and yielding collar can be applied to prevent dust from entering the hub.

It further consists uconstructing the hub with a recess, into which packing may be placed for the purpose of preventing the oil from escaping between the hub and disk-plate.

'.lo enable others skilled iu the art to make and use my invention I will describe it, referring to the drawing and letters marked thereon.

The harrow-frame is composed of metal and wood, and may be composed of either.

lt has two disk-bars, A A, semicircular adjustable bar B, center or draft-bar (lto which a sp1ingseat,D,

by bolts F.

The semicircular bar B has thills attached to the front cud, which projects forward of the disk-bars A A.

The scmicircnlar bar B is provided with a series of holes, H H, so that the disk-hars A A may be moved forward or backward to give more or less width, or change the angle of the disks with the line ot' draft -withont changing each disk separately.

The polo I or thills J J are a much-needed device to revolving-disk harows, as they prevent the lateral motion caused by disks placed or running obliquely to the' line of motion.

' The disk-bars A A are provided with a series of holes so arranged that the disk-supporters K K may be changed, as shown in drawing, fig. 2.

When the disk-supporters are secured in holes L L, as shown in fig. 1, the earth is thrown toward the center of the hai-row; but when the disk-supporters K are secured in holes 'm m, and the front edge of the disks are turned obliquely toward the center of the har-row, the earth will then be thrown out iioxn the center, as shown iu iig. 2.

If the disk-supporterswere to remain in holes L I.

,and merely changed half around the two disks near the center of the harrw would be so far ,apart that there would be a portion of earth sixteen or eighteen inches in width that would not be moved or operated upon; but changing the disk-supporters as shown in tig. 2, and turning the front edge of the disks together Obliqnelyto the line of motion, the earth will then be removed from the center.

The disk-supporters are. provided with small projcctious N N on the upper end or shoulder. which mesh into grooves or notches n ou the under side of the coupling-joint plate O. By this device the disk-s'up porter may be changed from one notch to another for the purpose of changing the an le or position of the disk, and also prevent the disk rom turning and make the disk more secure.

The hub P is provided with au inner' box, R, which has projections'S S on the outside, which tit into recesses 'l 'l iu the huh P, which prevent the box R from turning in the hub I.

'.lhe hub P has an opening at the small end, through which the axle or' shaft U is placed, and thcn the couical box R is placed in the hub around the axle U, which forms the bearing surface for the disk to revolve u on.

l)The hub 1 and box R, when placed together, are so constructed that a recess, is formedinto which packing v may be placed, between the hub and disk-plate is attached, and cross-bar E,'which are hel'd together N and hub P, which are held together by bolts or rivets w w.

A friction-plate, a', is placed on tho end of the axle U before the disk-plate V is put on, which serves a twofold purpose, viz., to prevent friction on the c nd of the axle U, and also cover the oil-hole a in the center o." the-disk-plate lV to prevent dirt from entering to the bearing surfaces.

After the axle is placed through the hub I then place a friction-washer or collar, b, on the axle next to the huh l?, and then place a yielding collaror gasket of rubber, or its equivalent, c, between tbc frictionwasher and disk-sumrorter, which is compressed between the washer b and disk-supporter or hanger K, which fore-es the washerjslightly against the linb P and prevents thc dust from entering the hub.

The holes' in the disk-bars A A are so arranged that, by removing the two inner disks V V and bolts ffj; and placing bolts in holes rrr, the disk-barsean then be taken up cndwise, as shown in dotted lines in fig. 1, which will contract the barrow or impiement to allow itto pass between rows in cultivating plants, grapevines, ibo., wit-hout changing tbe oblique position of 'tbe'disks, which would have to'be done were the rear ends of the disk-bars lnoughtnearer together, which is a common device in agricultural implements.

Having thus described my invention,

What I claim as new, and desire to secure by Leti tcrs Patent, is-' may be attached, in combination with the disk-bars A A and bai: O, or its equivalent, to admit of the described adjustment, snhstantially as set forth.

and axle U, when placed or running obliquely to the line of motion. v l

3. 1n combination with disk V', hub P, box R, axle U, the yielding washer c, friction-washer b, and pack ing, substantially as and for the purpose set forth.

JOSEPH 11. POND. Witnesses:

Amann ELWELL, J. J. EL'WELL.

1. The scmicmular bar B, to which thills or pole .l

2.. The disk V, in combination with hub P, box It, 

